Dna makes a good molecule for storing information because? its bases can be joined together in any order, like the letters of the alphabet can be strung to form different words. each nucleotide within a dna strand can give a cell different information, and there are many nucleotides in every cell. it can absorb ultraviolet light, so dna can protect cells from the damaging effects of this form of radiation. it is a type of nucleic acid, and most acids are an important part of information storage within cells.